- "Thanks for the book, Harry! I've been wanting that New Theory of Numerology for ages!"
- — Harry Potter's Christmas present to Hermione Granger[src]
New Theory of Numerology, by Lukas Karuzos,[1] is a book that seems to be about Arithmancy, but is not a required text for the subject at Hogwarts School of Witchcraft and Wizardry.
History
Harry Potter gave a copy to Hermione Granger for Christmas in 1995.
Appearances
- Harry Potter and the Order of the Phoenix (First appearance)
- Harry Potter and the Half-Blood Prince (film)
- Harry Potter Limited Edition
- Harry Potter: Wizards Unite
Notes and references
| Arithmancy | ||
|---|---|---|
| Professors: Septima Vector | ||
| Known Arithmancers: Sage Bragnam · Lukas Karuzos · Chiara Lobosca's father · Bridget Wenlock | ||
| Textbooks: Numerology and Grammatica · New Theory of Numerology | ||
| Arithmancy at Hogwarts: Arithmancy (class) · Classroom 7A · Advanced Arithmancy Studies |